CN109019038B

CN109019038B - Improved cement material conveying device

Info

Publication number: CN109019038B
Application number: CN201810977246.2A
Authority: CN
Inventors: 胡光远
Original assignee: Jidong Heidelberg Jingyang Cement Co Ltd
Current assignee: Jidong Heidelberg Jingyang Cement Co Ltd
Priority date: 2018-08-26
Filing date: 2018-08-26
Publication date: 2020-05-19
Anticipated expiration: 2038-08-26
Also published as: CN109019038A

Abstract

The invention discloses an improved cement material conveying device which comprises a compression bin, wherein a feeding pipe and a discharging pipe are respectively connected to two sides of the compression bin, the mounting height of the feeding pipe is lower than that of the discharging pipe, a conveying pipe is mounted in the compression bin, one end of the conveying pipe is located at the bottom of the compression bin, the other end of the conveying pipe is connected with the discharging pipe, a spiral conveying rod is arranged in the conveying pipe, the spiral conveying rod is in clearance fit with the conveying pipe, the spiral conveying rod is driven by a motor, an annular nozzle is mounted at the inlet of the bottom of the conveying pipe, through holes are formed in the surfaces of blades of the spiral conveying rod. The invention can improve the defects of the prior art and improve the smoothness of the cement bulk cargo conveying process in the compression bin.

Description

Improved cement material conveying device

Technical Field

The invention relates to the technical field of cement processing and manufacturing, in particular to an improved cement material conveying device.

Background

The cement material conveying equipment is a tool which is generally applied to material transfer in a cement plant, is mechanical equipment for moving materials in a cement bin in and out, and is low in material output efficiency, high in danger coefficient and environment-friendly when facing the cement bin with relatively large volume in the cement conveying process; and the existing conveying equipment can not accurately control the amount of conveyed materials, is easily blocked by materials with larger volume in the conveying process, and can not accurately control the position of the output materials. The Chinese invention patent CN 103896080B discloses an environment-friendly high-efficiency cement material conveying device, which conveys cement bulk materials in a plug flow manner in a compression bin by compressed air. However, this type of conveying apparatus stirs the bulk cement material by the stirring barrel outside the compression bin, thereby preventing the clogging of the piping due to the caking. After cement got into the compression storehouse, because the influence of temperature and humidity, the problem of caking also probably appears in the compression storehouse, this just needs often to open the storehouse and clears up, and working strength is big, causes the raise dust pollution easily.

Disclosure of Invention

The invention aims to provide an improved cement material conveying device, which can overcome the defects of the prior art and improve the smoothness of the cement bulk materials in the conveying process in a compression bin.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows.

The utility model provides a modified cement material conveyor, including the compression storehouse, the both sides in compression storehouse are connected with inlet pipe and discharging pipe respectively, the mounting height of inlet pipe is less than the mounting height of discharging pipe, install the conveyer pipe in the compression storehouse, the one end of conveyer pipe is located the bottom in compression storehouse, the other end and the discharging pipe of conveyer pipe are connected, be provided with the auger delivery pole in the conveyer pipe, auger delivery pole and conveyer pipe clearance fit, the auger delivery pole passes through motor drive, the bottom import department of conveyer pipe installs annular nozzle, the blade surface of auger delivery pole is provided with the through-hole, be provided with the screen cloth in the through-hole.

Preferably, an air inlet pipe is arranged at the center of the spiral conveying rod, and the air inlet pipe is communicated with the through hole through an air flow passage.

Preferably, an annular groove is formed at the joint of the air flow channel and the through hole, an outer sleeve is fixed on the outer edge of the annular groove, the outer sleeve is positioned in the sieve screen, and an inner sleeve is fixed on the inner edge of the annular groove; the surface of the outer sleeve is provided with a plurality of first drainage ports, the surface of the inner sleeve is provided with a plurality of second drainage ports, and a plurality of baffling sheets are arranged between the inner sleeve and the outer sleeve in a staggered mode.

Preferably, the radial cross section of the first drain port and the radial cross section of the second drain port are rectangular, and the long sides of the radial cross sections of the first drain port and the second drain port are perpendicular to each other.

Preferably, a throat is arranged in the first drain opening, and a bypass pipe is arranged between the throat and the surface of the outer sleeve.

Preferably, a third drainage port is formed in the top surface, facing the inner side wall of the through hole, of the outer sleeve, a conical groove is formed in the inner side wall of the through hole, the third drainage port and the conical groove are coaxially arranged, and the diameter of the outer side edge of the conical groove is equal to that of the outer sleeve.

Preferably, the annular nozzle comprises a plurality of air nozzles, the air nozzles are obliquely arranged outwards, and the included angle between the air nozzles and the axis of the conveying pipe is 22 degrees.

Preferably, an accommodating cavity is arranged in the air nozzle, and a pore plate is arranged at the top of the accommodating cavity.

Adopt the beneficial effect that above-mentioned technical scheme brought to lie in: the invention adds a conveying pipe in the compression bin to carry out semi-closed conveying on the cement bulk materials. In the conveyer pipe, auger delivery pole antiport makes it drive the cement bulk cargo and carries to the compression storehouse antiport from the discharging pipe, and this direction of delivery is just in time opposite with annular nozzle to the direction of delivery of cement bulk cargo, through two kinds of transport states of going on in opposite directions in the conveyer pipe, can make the cement bulk cargo carry out abundant mixing, stirring in the conveyer pipe to avoid the cement bulk cargo to take place the problem that the caking blockked up. Because the screw conveying rod is in clearance fit with the conveying pipe, the cement bulk materials in a plug flow state are conveyed outwards through the gap, and meanwhile, the cement bulk materials on the surface of the screw conveying rod can also be conveyed outwards through the through holes, so that the necessary cement conveying capacity is ensured. Compressed air enters the through hole through the air inlet pipe, so that the flowing speed of cement in the through hole can be increased, and cement adhesion and caking are avoided. The design of the two layers of sleeves in the through hole can improve the all-dimensional blowing of the air flow in the through hole, so that the air flow blowing effect in the through hole is further improved. The first leakage port is provided with the necking and the bypass pipe, so that the blowing coverage area of the first leakage port can be expanded, a blowing overlapping area is formed between different first leakage ports, and the blowing dead angle caused by a single blowing direction is avoided. The third earial drainage mouth and conical recess interact make the air current form palirrhea in conical recess department, and palirrhea air current sweeps on outer telescopic surface, has reduced the cement attachment volume of outer sleeve, intersects with the air current from first earial drainage mouth spun simultaneously, further improves the homogeneity that the air current flows in the through hole. The air nozzle inclines outwards to set up, can improve the outside efficiency of carrying of cement bulk cargo of bolt flow state, and the chamber that holds in the air nozzle is used for collecting the cement dust that drops into in the air nozzle when atmospheric pressure reduces suddenly or stops the air feed, and when ventilating once more and carrying, the high velocity air current forms the negative pressure in orifice plate department to bring the cement dust out of air nozzle.

Drawings

FIG. 1 is a block diagram of one embodiment of the present invention.

Fig. 2 is a structural view of the inside of a through hole in an embodiment of the present invention.

Figure 3 is a cross-sectional view of an outer sleeve and an inner sleeve in one embodiment of the present invention.

FIG. 4 is a block diagram of an air nozzle in accordance with an embodiment of the present invention.

In the figure: 1. compressing the bin; 2. a feed pipe; 3. a discharge pipe; 4. a notch; 5. a delivery pipe; 6. a screw conveying rod; 7. a motor; 8. an annular nozzle; 9. a through hole; 10. screening a screen; 11. an air inlet pipe; 12. an air flow passage; 13. an annular groove; 14. an outer sleeve; 15. an inner sleeve; 16. a first bleed port; 17. a second bleed port; 18. a baffle sheet; 19. necking; 20. a bypass pipe; 21. a third bleed port; 22. a conical recess; 23. an air nozzle; 24. an accommodating chamber; 25. an orifice plate; 26. a first annular spout; 27. a first baffle plate; 28. a second annular spout; 29. a second baffle; 30. a sleeve.

Detailed Description

The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, and the specific connection mode of each part adopts the conventional means of mature bolts, rivets, welding, sticking and the like in the prior art, and the detailed description is not repeated.

Referring to fig. 1-4, a specific embodiment of the invention includes a compression bin 1, a feed pipe 2 and a discharge pipe 3 are respectively connected to two sides of the compression bin 1, the installation height 2 of the feed pipe is lower than that of the discharge pipe 3, a conveying pipe 5 is installed in the compression bin 1, one end of the conveying pipe 5 is located at the bottom of the compression bin 1, the other end of the conveying pipe 5 is connected with the discharge pipe 3, a spiral conveying rod 6 is arranged in the conveying pipe 5, the spiral conveying rod 6 is in clearance fit with the conveying pipe 5, the spiral conveying rod 6 is driven by a motor 7, an annular nozzle 8 is installed at the inlet of the bottom of the conveying pipe 5, a through hole 9 is formed in the surface of a blade. An air inlet pipe 11 is arranged at the center of the spiral conveying rod 6, and the air inlet pipe 11 is communicated with the through hole 9 through an air flow passage 12. An annular groove 13 is formed at the joint of the air flow channel 12 and the through hole 9, an outer sleeve 14 is fixed on the outer edge of the annular groove 13, the outer sleeve 14 is positioned in the screen 10, and an inner sleeve 15 is fixed on the inner edge of the annular groove 13; the outer sleeve 14 is provided with a plurality of first discharge ports 16 on the surface, the inner sleeve 15 is provided with a plurality of second discharge ports 17 on the surface, and a plurality of baffle plates 18 are arranged between the inner sleeve 15 and the outer sleeve 14 in a staggered mode. The radial cross sections of the first and

second drain ports

16 and 17 are rectangular, and the long sides of the radial cross sections of the first and

second drain ports

16 and 17 are perpendicular to each other. A throat 19 is provided in the first bleed port 16 and a bypass tube 20 is provided between the throat 19 and the surface of the outer sleeve 14. The top surface of the outer sleeve 14 facing the inner side wall of the through hole 9 is provided with a third leakage port 21, the inner side wall of the through hole 9 is provided with a conical groove 22, the third leakage port 21 and the conical groove 22 are coaxially arranged, and the outside edge diameter of the conical groove 22 is equal to that of the outer sleeve 14. The annular nozzle 8 comprises a plurality of air nozzles 23, the air nozzles 23 are arranged obliquely outwards, and the included angle between the air nozzles 23 and the axis of the conveying pipe 5 is 22 degrees. An accommodating cavity 24 is arranged in the air nozzle 23, and a pore plate 25 is arranged at the top of the accommodating cavity 24.

In addition, the ratio of the inner diameters of the outer sleeve 14 and the inner sleeve 15 is 3:2, the ratio of the distance between the top surface of the outer sleeve 14 and the inner side wall of the through hole 9 to the inner diameter of the outer sleeve 14 is 1:5, and the ratio of the diameter of the third discharge port 21 to the diameter of the conical groove 22 is 1: 2. The clearance between the spiral conveying rod 6 and the conveying pipe 5 is kept between 5 cm and 10 cm.

The lateral wall of the air nozzle 23 is provided with a first annular nozzle 26, a plurality of first baffles 27 are fixed on the first annular nozzle 26, a sleeve 30 is movably sleeved on the outer side of the air nozzle 23, a second annular nozzle 28 is arranged on the lateral wall of the sleeve 30, the first annular nozzle 26 and the second annular nozzle 28 are located at the same height and are communicated with each other, a plurality of second baffles 29 are fixed on the second annular nozzle 28, and the included angle between the first baffles 27 and the second baffles 29 is 30 degrees. When the air nozzle 23 injects the compressed air outwards, part of the compressed air is injected from between the first annular nozzle 26 and the second annular nozzle 28, and the air flow pushes the sleeve 30 to rotate under the interaction with the second baffle 29, so that the air nozzle 23 realizes multi-angle rotating injection.

Evenly be provided with a plurality of breach 4 at the edge of 6 blades of auger delivery pole, breach 4 can utilize the multi-angle rotating who air nozzle 23 formed to spray, promotes to be located the cement at 6 blade edges of auger delivery pole and carries along with compressed air, further improves conveying efficiency.

The invention can effectively reduce the probability of caking and blocking of cement in the compression bin.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an improved cement material conveying device, includes compression storehouse (1), its characterized in that: the both sides of compression storehouse (1) are connected with inlet pipe (2) and discharging pipe (3) respectively, the mounting height (2) of inlet pipe are less than the mounting height of discharging pipe (3), install conveyer pipe (5) in compression storehouse (1), the one end of conveyer pipe (5) is located the bottom of compression storehouse (1), the other end and the discharging pipe (3) of conveyer pipe (5) are connected, be provided with spiral delivery pole (6) in conveyer pipe (5), spiral delivery pole (6) and conveyer pipe (5) clearance fit, spiral delivery pole (6) are through motor (7) drive, annular nozzle (8) are installed to the bottom import department of conveyer pipe (5), the blade surface of spiral delivery pole (6) is provided with through-hole (9), be provided with screen cloth (10) in through-hole (9).

2. The improved cement material transport device of claim 1, wherein: an air inlet pipe (11) is arranged at the center of the spiral conveying rod (6), and the air inlet pipe (11) is communicated with the through hole (9) through an air flow passage (12).

3. The improved cement material transport device of claim 2, wherein: an annular groove (13) is formed in the joint of the air flow channel (12) and the through hole (9), an outer sleeve (14) is fixed to the outer edge of the annular groove (13), the outer sleeve (14) is located in the screen (10), and an inner sleeve (15) is fixed to the inner edge of the annular groove (13); the surface of the outer sleeve (14) is provided with a plurality of first drainage ports (16), the surface of the inner sleeve (15) is provided with a plurality of second drainage ports (17), and a plurality of baffling sheets (18) are arranged between the inner sleeve (15) and the outer sleeve (14) in a staggered manner.

4. The improved cement material transport device of claim 3, wherein: the radial cross sections of the first drain port (16) and the second drain port (17) are rectangular, and the long sides of the radial cross sections of the first drain port (16) and the second drain port (17) are perpendicular to each other.

5. The improved cement material transport device of claim 3, wherein: a necking opening (19) is arranged in the first leakage opening (16), and a bypass pipe (20) is arranged between the necking opening (19) and the surface of the outer sleeve (14).

6. The improved cement material transport device of claim 3, wherein: the top surface of the outer sleeve (14) facing the inner side wall of the through hole (9) is provided with a third drainage port (21), the inner side wall of the through hole (9) is provided with a conical groove (22), the third drainage port (21) and the conical groove (22) are coaxially arranged, and the diameter of the outer side edge of the conical groove (22) is equal to that of the outer sleeve (14).

7. The improved cement material transport device of claim 1, wherein: the annular nozzle (8) comprises a plurality of air nozzles (23), the air nozzles (23) are arranged in an outward inclined mode, and the included angle between the air nozzles (23) and the axis of the conveying pipe (5) is 22 degrees.

8. The improved cement material transport device of claim 7, wherein: an accommodating cavity (24) is formed in the air nozzle (23), and a pore plate (25) is arranged at the top of the accommodating cavity (24).